Table 3. Number selectivity.
Activations for numbers > object names (number selectivity) for conceptual tasks only, conceptual > perceptual judgments, quantity and non-quantity judgments only in Analysis 1 (RTs modeled separately for numbers and object names) and for conceptual tasks only in Analysis 2 (RTs modeled over number & object names).
| Analysis 1 | Analysis 2 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Coordinates | Conceptual only | Conceptual> perceptual | Quantity only | Non-quantity only | Conceptual only | No. of voxels^ | ||||
| Area | H | x | y | z | z-scores | |||||
| Posterior IPS | R | 28 | −70 | 32 | 6.0 | 4.9 | 6.1 | 4.8 | 4.7 | 340 |
| 32 | −66 | 32 | 4.2 | 3.8 | 4.0 | 3.2 | 4.3 | |||
| 32 | −80 | 34 | 4.6 | 4.4 | 3.4 | 3.2 | 4.4 | |||
| Angular gyrus |
R | 42 | −78 | 34 | 3.4* | n.s. | 3.8* | 3.1* | 3.7 | |
| 38 | −78 | 30 | 4.6 | 4.0 | 4.5 | 3.5 | 3.9 | |||
| 32 | −76 | 42 | 5.2 | 4.4 | 4.0 | 4.6 | n.s. | 433 | ||
| 30 | −62 | 46 | 3.9 | 3.0 | 2.8 | 3.2 | 4.2 | |||
| 32 | −56 | 42 | n.s. | n.s. | n.s. | n.s. | 4.5 | |||
| Superior parietal |
R | 22 | −68 | 56 | 5.5 | 4.9 | 4.9 | 4.1 | 4.3 | |
| 18 | −70 | 56 | 5.4 | 4.7 | 4.2 | 3.3 | 3.4 | |||
| 32 | −64 | 54 | 5.1 | 4.1 | 5.1 | 5.0 | 3.2 | |||
| Supramarginal gyrus |
R | 48 | −48 | 40 | 3.8 | 3.4 | 3.7 | 2.1 | 3.4 | |
| 44 | −44 | 48 | 4.0 | 2.8 | 2.6 | 2.8 | 3.3 | |||
| L | −40 | −44 | 40 | 5.4 | 4.8 | 4.5 | 4.8 | n.s. | ||
| −52 | −4 | 46 | 3.2 | 1.7 | 1.8 | 1.7 | n.s. | |||
Legend: In bold significant at p<0.05 corrected for multiple comparisons, H = Hemisphere, L = Left; R = Right
^
p<0.001
*
Within 4mm